1. I can find nly this demo installation for you. You can test out a range bar plug-in for mt4.
2. And here is a FREE range bar script. Just remember you have to attach to the chart again every time you close mt4.
Here is a constant range bar script/ea for you. Put this in your EA folder and then attach to 1 min chart as an EA, open offline (it defaults to 2 min). As long as you keep the charts open, every time you restart, it will treat auto recalculate so no need for you to re-attach it.